Custom color workflow
If the customer can provide an approved sample, plaque, pellet, or color card reference, we can discuss custom color masterbatch rather than forcing buyers into only stocked shades.
China-based manufacturing | export-facing communication
White, black, and custom color masterbatch for practical industrial sourcing.
Sinfone is the export-facing brand of Yuyao Xinfeng Plastic Chemical Co., Ltd., based in Yuyao, Zhejiang, China. We currently highlight trial white and black masterbatch grades while continuing to position custom color masterbatch as a core strength when buyers can provide a sample, plaque, pellet, or color reference for review.
View Product Families
White, black, ABS-focused white, and custom color capability
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Sampling, application review, and manual follow-up
Company materials trace operations to 2007
Legal entity established in 2009
Current trial grades packed in 25 kg bags
Sampling available for project review
Current focus
Product families now shown more clearly.
Instead of burying every topic inside one long page, the site now highlights the product conversations that matter most for early overseas sourcing: white masterbatch, black masterbatch, and custom color matching.
White Masterbatch
Includes trial grade 3450 and an ABS-focused white option for buyers discussing appliance housings, film, and other appearance-sensitive applications.
General-use white
ABS-focused option
Explore white family
Black Masterbatch
Trial grade 2016 is presented for injection, blow molding, and film applications where buyers want a practical black program with good dispersion.
Injection and film
Project-based customization
Explore black family
Custom Color Masterbatch
Custom color matching is one of the strongest long-term directions. Buyers can start with a sample, plaque, chip, or color card reference and move into manual review.
Sample-led matching
Color card reference
Explore color capability
Company direction
Manufacturing base in Yuyao, presented for clearer overseas communication.
The company is based in Yuyao, Zhejiang, China, and the site presents that directly instead of hiding the manufacturing origin behind generic trading language. That creates a more believable story for U.S. buyers who want to know where the product comes from and who is behind the inquiry response.
Factory and shipment visibility
Production-line, warehouse, and cargo-loading photos now have their own place in the site so the company feels like a real industrial business, not just a text-only supplier page.
Trust and cross-checks
The business license, report support, and Chinese platform references are grouped inside the quality layer where buyers expect to validate supplier legitimacy.
Best way to start
Send the target product family, resin or process, target color or black or white direction, and any sample or reference you already have. That is enough to begin a real sourcing conversation without overpromising before the technical review.